package com.sun.mychat.mapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.sun.mychat.pojo.User;

import java.util.List;
public interface UserMapper extends BaseMapper<User> {

    List<User> getUseFriend(Long uid);




}
